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05/04/2019 Highlights of New Wild Poliovirus and cVDPV Positives Reported Globally this Week 1Environmental sampling, contacts of AFP cases, community sampling. The boundaries and names shown and the designations used in the maps in this document do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. WHO All rights reserved Data in WHO HQ as of 26 Sep. 2017 Data in WHO HQ as of 30 Nov 2010
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Global Wild Poliovirus & cVDPV Cases1, Previous 12 Months2
05/04/2019 Global Wild Poliovirus & cVDPV Cases1, Previous 12 Months2 Wild poliovirus type 1 cVDPV type 2 Endemic country 1Excludes viruses detected from environmental surveillance 2Onset of paralysis 27 September 2016 – 26 September 2017 Data in WHO HQ as of 26 Sep. 2017 Data in WHO HQ as of 30 Nov 2010
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Global Wild Poliovirus & cVDPV Cases1, Previous 6 Months2
05/04/2019 Global Wild Poliovirus & cVDPV Cases1, Previous 6 Months2 Wild poliovirus type 1 cVDPV type 2 2Current rolling 6 months: 27 March 2017 – 26 September 2017 3Same period previous year: data reported from 27 March 2016 Endemic country 1Excludes viruses detected from environmental surveillance 2Onset of paralysis 27 March 2017 – 26 September 2017 Data in WHO HQ as of 26 Sep. 2017 Data in WHO HQ as of 30 Nov 2010
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Global Wild Poliovirus 2012 - 2017
05/04/2019 Global Wild Poliovirus Data in WHO HQ as of 26 Sep. 2017 Data in WHO HQ as of 30 Nov 2010
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Global Circulating Vaccine-derived Poliovirus Cases1,2,3, 2000 - 2017
05/04/2019 Data in WHO HQ as of 26 Sep. 2017 1For cVDPV definition see Niger 2006, Niger 2009, Niger 2010, Chad 2010 cVDPVs are linked to the Nigeria outbreak. Kenya 2012 cVDPVs are linked to the Somalia outbreak. Nigeria figures include cases with WPV1/cVDPV2 mixture: , , , , , ; WPV3/cVPDV2 mixture: cVDPV2 from a contact of a WPV1 case in Nigeria not included in country and global case count. 3Figures include multiple emergences and transmission chains. Data in WHO HQ as of 30 Nov 2010
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Global Surveillance Indicators: Year to Date Comparison
2016 & 2017: 01 January to 26 September 2017* 05/04/2019 *Data for 2016 as of 27 Sep and for 2017 as of 26 Sep For data at country, regional and global levels from 2000 onwards, see the WHO website at Data in WHO HQ as of 30 Nov 2010
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